Every year or so, a random box of gaming stuff appear on my step (someone getting out of the hobby, usually). I then sort it and pass it along to whomever seems most appropriate.
Last year, the box included a bunch of broken trees. I set them aside, thinking I would rehab them for use. And I finally got around to it.
I removed the trunks from the old bases, attached them to washers (old bases were too light to secure the trees), then textured. Then gave the trees a dry brush to tone down the glare and give them some depth.
Not a bad little project. I can always use more trees and these (despite being cheap... and free!) look the part for 28s and 54s. I have some more trees (orchard style) under way. Not sure what will follow them.